misc cleanup
classes: rogue tree = knife*4 > chuck > katana > hook. alas that we were
pressed for time, we can revisit later. Edit starter rogue details for
content.coffee
classes: fixes to two-handed handling
mark task*tags as modified (since Schema.Types.Mixed)
apiv2: move tags (update, delete, create) to Shared.ops
APIv2 some finalization of apiv2. Re-rigging some query/params vars, and bug-fixes
Merge remote-tracking branch 'origin/sabe/classes' into develop

Conflicts:
	script/content.coffee
move userServices.js to habitrpg-shared, so mobile can share the code
move updateStore back outside of user.fns. It's causing issues there,
need to investigate
show message when buying items